SSH Sentinel through pix 506 to Zyxel

[rrgg]

Hi all,
I have one PIX 506e, on inside lan there is one PC client, on this client there is SSH Sentinel VPN Client software for connect this PC to a Remote lan protected by Zyxel Router/firewall.
When I activate Sentinel software,
VPN Tunnel goes ON but the taffic doesn't work, for example is not possible to ping any host.
If I remove PIX 506 and I connect PC directly to the Router, VPN Tunnel goes ON and any host of remote Lan respond to Ping. Zyxel support suggest to verify Port 500 and port 68.

This is configuration on my PIX:

PIX Version 6.3(5)
interface ethernet0 auto
interface ethernet1 auto
nameif ethernet0 outside security0
nameif ethernet1 inside security100
hostname PIX
domain-name intranet.luceat.it
fixup protocol dns maximum-length 512
fixup protocol ftp 21
fixup protocol h323 h225 1720
fixup protocol h323 ras 1718-1719
fixup protocol http 80
fixup protocol ils 389
fixup protocol rsh 514
fixup protocol rtsp 554
fixup protocol sip 5060
fixup protocol sip udp 5060
fixup protocol skinny 2000
fixup protocol smtp 25
fixup protocol sqlnet 1521
fixup protocol tftp 69
names
access-list outside_access_in permit icmp any any echo-reply
access-list nonat permit ip any 10.0.1.0 255.255.255.0
access-list nonat permit ip any 10.0.2.0 255.255.255.0
access-list nonat permit ip any 10.0.3.0 255.255.255.0
pager lines 24
mtu outside 1500
mtu inside 1500
ip address outside xx.xx.xx.xx 255.255.255.248
ip address inside 192.168.2.101 255.255.255.0
ip audit info action alarm
ip audit attack action alarm
ip local pool Networking 10.0.1.1-10.0.1.10
ip local pool Mobile 10.0.2.1-10.0.2.10
ip local pool Comm 10.0.3.1-10.0.3.10
pdm location 192.168.2.0 255.255.255.0 inside
pdm location 10.0.1.0 255.255.255.0 outside
pdm history enable
arp timeout 14400
global (outside) 1 interface
nat (inside) 0 access-list nonat
nat (inside) 1 0.0.0.0 0.0.0.0 0 0
access-group outside_access_in in interface outside
route outside 0.0.0.0 0.0.0.0 xx.xx.xx.zz 1
timeout xlate 3:00:00
timeout conn 1:00:00 half-closed 0:10:00 udp 0:02:00 rpc 0:10:00 h225 1:00:00
timeout h323 0:05:00 mgcp 0:05:00 sip 0:30:00 sip_media 0:02:00
timeout sip-disconnect 0:02:00 sip-invite 0:03:00
timeout uauth 0:05:00 absolute
aaa-server TACACS+ protocol tacacs+
aaa-server TACACS+ max-failed-attempts 3
aaa-server TACACS+ deadtime 10
aaa-server RADIUS protocol radius
aaa-server RADIUS max-failed-attempts 3
aaa-server RADIUS deadtime 10
aaa-server LOCAL protocol local
http server enable
http 192.168.2.0 255.255.255.0 inside
http 10.0.1.0 255.255.255.0 inside
no snmp-server location
no snmp-server contact
snmp-server community public
no snmp-server enable traps
floodguard enable
sysopt connection permit-ipsec
crypto ipsec transform-set TRSET esp-3des esp-sha-hmac
crypto dynamic-map dynmap 10 set transform-set TRSET
crypto map VPN 10 ipsec-isakmp dynamic dynmap
crypto map VPN interface outside
isakmp enable outside
isakmp identity address
isakmp nat-traversal 20
isakmp policy 10 authentication pre-share
isakmp policy 10 encryption 3des
isakmp policy 10 hash sha
isakmp policy 10 group 2
isakmp policy 10 lifetime 86400
vpngroup Networking address-pool ONE
vpngroup Networking dns-server 192.168.2.1
vpngroup Networking wins-server 192.168.2.1
vpngroup Networking default-domain intranet
vpngroup Networking idle-time 1800
vpngroup Networking password ZZZZZZZZZZZZZZZZZZZ
vpngroup Mobile address-pool TWO
vpngroup Mobile dns-server 192.168.2.2
vpngroup Mobile wins-server 192.168.2.2
vpngroup Mobile default-domain intranet
vpngroup Mobile idle-time 1800
vpngroup Mobile password XXXXXXXXXXXXXXXXXX
vpngroup Comm address-pool THREE
vpngroup Comm dns-server 192.168.2.2
vpngroup Comm wins-server 192.168.2.2
vpngroup Comm default-domain intranet
vpngroup Comm idle-time 1800
vpngroup Comm password

http://WWWWWWWWWWW

telnet 192.168.2.0 255.255.255.0 inside
telnet timeout 5
ssh timeout 5
management-access inside
console timeout 0
terminal width 80

Any idea or solution???

Thanks to all.